Clamp for fastening stone couch-rolls and wet-press rolls on their axles.



,PATENTEDJULY 31 19061 w r e. RENKER." CLAMP FOR FASTENING-STONE 0011011 ROLLS AND WET PRESS ROLLS,

,ON THEIR AXLBS. APPLICATION IILBD NOV 28 1905 Hum in "ma.

UNITED STATES PATENT oirrron.

I GUSTAV RENKER, OF DIlREN, GERMANY, ASSIGNOR TO THE FIRM OF HEINR AUG. SCHOELLER SGHNE, OF DIlREN,

GERMANY.

CLAMP FOR FASTENING, STONE COUCH-ROLLS AND WET-PRESS ROLLS ON THEIR AXLES. v

Specification of Letters Patent. Application filed November 28,1905. $erial No. 289,386.

Patented July 31, 1906.

. To all whom it may concern.-

. ously Be it known that I, GUSTAV RENKER, a subject of the King of Prussia, German Emperor, residing at Diiren, Rheinlandfln the German Empire, have invented certain new and useful Improvements in Clamps for Fastening Stone Couch-Rolls and Wet-Press Rolls for Paper-Machines on Their Axles, of which the following is a full, clear, and exact specification. c

My invention relates to and has for its object a clamp for fastening stone couch-rolls and wet-press rolls onto their axles by means of a carrier and removable claws.

Stone or earthenware couch-rolls and wet press rolls for paper-machines have previbeen fastened on their axles by means of metal ends having the same diameter as the rolls.- the front ends of *the stone-cylinders by means of a ring which, having been heated, was contracted or shrunk onto the cylinder, and the metal ends were firmly fixed to the axle. One. of the great objections to this method of fastening is the disadvantage that the stone is heated, so that a breaking off of parts of the stone end at the surface of the inner edge of the ring easilytakes place, or

otherwise cracks may be caused. Another objection to such a method offastening is that the cylinder cannot be dismounted without injury to the stone. I

One of the important objects of my invention is, therefore, a clamp to hold the rolls in sucha way that they are securely mounted on their axles without being broken or cracked.

Another object is that the rolls may be so held that they may be easily dismounted without injury to the stone.

. The accompanying clamp for fastening the rolls embodying my invention.

These metal ends were joined to drawings illustrate a Figure 1 is a vertical section through the clamp. Fig. 2 is an elevation.

Similarletters of reference refer to similar parts in both views.

Two crosses a, of cast-iron, cast-steel, or the like, which are of the same pattern, 'are keyed onto the shaft 6, Figs. 1 and 2 and inclose'or lock the stone 0 between them.- fastened onto each of the four arms of the cross 0, which fit into corresponding notches or grooves in the stone a. The stone is securely held between the four claws, and the cylinder can easily be dismounted when required. The security of the fastening may be further increased by employing a layer 6, of lead, copper, and the like under the claws d. The carrier 0 for the claws (1 may be also formed as a disk with cuts in it for the reception of the claws (1 instead of as a cross. cap f, of brass or the-like, may be placed on the .cylinder end after the claws have been fixed in the carrier by screws or otherwise.

What I claim, and desire to secure by Letters Patent, is.-

1. A clamp for fastening stone couch-rolls and wet-pressrolls of paper-machines totheir axles, in whichthe stone is held fast by A claw d is means of claws which fit into notches or grooves in the same, which claws are held in the carrier which is keyed to the shaft.

2. In a clamp for fastening stone couchrolls and wet-press rolls of paper-machines to their axles, claws which fit into notches or grooves in the stone, and which are attached to the carrier. 1 I

In witness whereof I have signed hereunto my name in the presence of two subscribing witnesses.

- Witnesses: I

HENRY QUADJLIEG, JOSEF POULK."

GUSTAV RENKER. r 

